Add range/detail/metafunctions.h header, which just #includes all the metafunction headers.
Add range/detail/metafunctions.h header, which just #includes all the metafunction headers.

hemmingway/thrust,UIKit0/thrust,bfurtaw/thrust,lishi0927/thrust,google-code-export/thrust,malenie/thrust,malenie/thrust,google-code-export/thrust,levendlee/thrust,bfurtaw/thrust,allendaicool/thrust,levendlee/thrust,bfurtaw/thrust,Vishwa07/thrust,levendlee/thrust,malenie/thrust,rdmenezes/thrust,allendaicool/thrust,Vishwa07/thrust,julianromera/thrust,UIKit0/thrust,h1arshad/thrust,allendaicool/thrust,h1arshad/thrust,google-code-export/thrust,lishi0927/thrust,malenie/thrust,lishi0927/thrust,allendaicool/thrust,h1arshad/thrust,julianromera/thrust,Vishwa07/thrust,google-code-export/thrust,hemmingway/thrust,lishi0927/thrust,bfurtaw/thrust,rdmenezes/thrust,hemmingway/thrust,hemmingway/thrust,rdmenezes/thrust,julianromera/thrust,UIKit0/thrust,levendlee/thrust,h1arshad/thrust,UIKit0/thrust,Vishwa07/thrust,julianromera/thrust,rdmenezes/thrust